What is the appositive phrase in the sentence "my neighbor, little sierra, threw rocks through her parents' window "?

An "appositive" refers to a "noun" or "noun phrase" that renames another noun right beside it.

In the sentence given: 

"My neighbor, little Sierra, threw rocks through her parents' window." ; 
    ,

the phrase: "little Sierra"—renames the noun: "neighbor".

As such, the phrase: "little Sierra" is an 'appositive phrase'.

this is the answer , p = 1 + (1/10)x

step-by-step explanation:

we have,

at sea level pressure is 1 atmosphere (i.e at x =0, p0=1 atmosphere)

at depth 23 meters , pressure = 3.3 atmosphere

since the pressure increases at constant rate as the depth increases, so we can write a relation as:

p =p0 +   kx   , where p is the pressure  , p0 is the initial pressure, x is the depth and k is constant rate of increasing.

to find constant rate k, plug p = 3.3 , p0 = 1 and x= 23 meters

we get,

  3.3 = 1 + k * 23

k = 2.3 / 23   = 1/10

so we can write the function formula as:   p = 1 + (1/10)x

well basically since ima beginner people will answer any subject "right away"and if you get more points you could ask more questions or if you answer someone's question you get points